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hram777 [196]
3 years ago
5

1

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
8 0

(x-4)(x-4)= 0

x-4= 0 , x-4= 0

x-4+4= 0+4 , x-4+4= 0

x= 4 , x= 4

Answer is x= 4 (C.)

Whitepunk [10]3 years ago
6 0

Answer:

x = {4, 4}

Step-by-step explanation:

(x - 4)(x - 4) = 0 has two real, equal roots:  x = 4 and x = 4.  Notice that subbing 4 for x in this equation results in a TRUE equation.

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2 years ago
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3 years ago
How can you represent a rate with 100 as the whole?<br><br> Please need help
Levart [38]

Answer:

How to Calculate a Rate. "Rate" simply means the number of things per some other number, usually 100 or 1,000 or some other multiple of 10. A percentage is a rate per 100. Infant mortality rates are calculated per 1,000.

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7 0
3 years ago
0.5 recurring as a fraction​
Klio2033 [76]

0.5 = 5/10 = 1/2

The answer is 1/2

5 0
2 years ago
Read 2 more answers
What the recursive formula for the sequence
klemol [59]

\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference} \end{cases} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ a_n=2-5(n-1)\implies a_n=\stackrel{\stackrel{a_1}{\downarrow }}{2}+(n-1)(\stackrel{\stackrel{d}{\downarrow }}{-5})


so, we know the first term is 2, whilst the common difference is -5, therefore, that means, to get the next term, we subtract 5, or we "add -5" to the current term.

\bf \begin{cases} a_1=2\\ a_n=a_{n-1}-5 \end{cases}


just a quick note on notation:

\bf \stackrel{\stackrel{\textit{current term}}{\downarrow }}{a_n}\qquad \qquad \stackrel{\stackrel{\textit{the term before it}}{\downarrow }}{a_{n-1}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{current term}}{a_5}\qquad \quad \stackrel{\textit{term before it}}{a_{5-1}\implies a_4}~\hspace{5em}\stackrel{\textit{current term}}{a_{12}}\qquad \quad \stackrel{\textit{term before it}}{a_{12-1}\implies a_{11}}

8 0
3 years ago
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